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Finding the Fourth Proportional to 58,920.75, 81,310.64 and 33,770.25

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Solution

The fourth proportional to 58,920.75, 81,310.64 and 33,770.25 is: 46,602.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,920.75 : 81,310.64 = 33,770.25 : x
  2. Step 2: Convert to fraction form
    58,920.75/81,310.64 = 33,770.25/x
  3. Step 3: Cross multiply
    58,920.75x = 81,310.64 × 33,770.25
  4. Step 4: Simplify right side
    58,920.75x = 2,745,880,471.61
  5. Step 5: Solve for x
    x = 2,745,880,471.61/58,920.75
  6. Step 6: Final answer
    x = 46,602.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.